<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <div style="text-align: center">
        <form action="insertUser" method="post">
            用户姓名:<input name="name" type="text"><br/><br/>
            密码:<input name="password" type="text"><br/><br/>
            用户等级:<input name="grade" type="text"><br/><br/>
            <input type="submit" value="提交">
        </form>
    </div>
</body>
</html>